i of my friend has 6681 he is very happy with the phone but is dissappointed that he doesn't have visual radio or any other fm radio software. as N70 can be converted to its music edition can 6681 work on n72's firmware by changing its product code

as N70 can be converted to its music edition can 6681 work on n72's firmware by changing its product code

Don't even try it, if you still want to have a functional phone. Firmware is the connection between hardware and software. Trying to put N72's firmware on the 6681 is the same like putting Windows Mobile on it. You just can't.